Son Na-eun Surprised by 'Chief Kim's' Popularity, Ratings Rising with Every Episode

Regarding the popularity of 'Chief Kim,' Son Na-eun revealed, "I was really surprised. I wondered, 'Is this even possible? Is this right?' So I went into the ratings to check. I kept asking, 'Is this really true?' I even take screenshots. It's so fascinating to see the numbers go up that I take a screenshot of every single episode." She added, "We are indeed breaking records every episode! It was fun, haha."